fix: PWA Direct-Play statt HLS + Template-Fix series_detail

- Browser/PWA nutzt jetzt direkte MP4-Wiedergabe mit Range-Requests
- Codec-Pruefung (H.264/HEVC/AV1) mit automatischem HLS-Fallback
- direct_play_url zur Library Video-Info-Route hinzugefuegt
- Doppeltes endblock in series_detail.html entfernt (500er Fehler)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

video-konverter/app/routes/library_api.py

@@ -1717,6 +1717,9 @@ def setup_library_routes(app: web.Application, config: Config,
             )
         ]
 
+        # Direct-Play URL fuer Browser/PWA (MP4 mit Range-Requests)
+        video["direct_play_url"] = f"/tv/api/direct-stream/{video_id}"
+
         return web.json_response(video)
 
     # === Episoden-Thumbnails ===

video-konverter/app/static/tv/js/player.js

@@ -88,11 +88,16 @@ function initPlayer(opts) {
             }
         });
     }
-    // Prioritaet 3: HLS-Streaming (Browser, kein nativer Player)
+    // Prioritaet 3: Browser/PWA - Direct-Play (MP4) bevorzugt, HLS als Fallback
     else {
-        const infoReady = loadVideoInfo();
+        showLoading();
-        startHLSStream(opts.startPos || 0);
+        const startPos = opts.startPos || 0;
-        infoReady.then(() => updatePlayerButtons());
+        loadVideoInfo().then(() => {
+            updatePlayerButtons();
+            _tryBrowserDirectPlay(startPos);
+        }).catch(() => {
+            startHLSStream(startPos);
+        });
     }
 
     // Events
@@ -621,6 +626,78 @@ function _nativeFallbackToHLS(startPosSec) {
     infoReady.then(function() { updatePlayerButtons(); });
 }
 
+// === Browser Direct-Play (MP4 mit Range-Requests) ===
+
+/**
+ * Versucht direkte MP4-Wiedergabe im Browser (PWA).
+ * Faellt auf HLS zurueck wenn Codec nicht unterstuetzt oder Fehler.
+ */
+function _tryBrowserDirectPlay(seekSec) {
+    if (!videoInfo || !videoInfo.direct_play_url) {
+        console.info("[Player] Keine Direct-Play-URL, Fallback auf HLS");
+        startHLSStream(seekSec);
+        return;
+    }
+
+    var directUrl = videoInfo.direct_play_url;
+    console.info("[Player] Browser Direct-Play: " + directUrl);
+
+    // Pruefen ob der Browser den Codec abspielen kann
+    var codec = (videoInfo.video_codec || "").toLowerCase();
+    var canPlay = false;
+    if (codec === "h264" || codec === "avc1") {
+        canPlay = !!videoEl.canPlayType('video/mp4; codecs="avc1.640028"');
+    } else if (codec === "hevc" || codec === "h265" || codec === "hvc1") {
+        canPlay = !!videoEl.canPlayType('video/mp4; codecs="hvc1.1.6.L120"');
+    } else if (codec === "av1") {
+        canPlay = !!videoEl.canPlayType('video/mp4; codecs="av01.0.08M.08"');
+    } else {
+        // Unbekannter Codec - einfach versuchen
+        canPlay = true;
+    }
+
+    if (!canPlay) {
+        console.info("[Player] Browser unterstuetzt Codec '" + codec + "' nicht, Fallback auf HLS");
+        startHLSStream(seekSec);
+        return;
+    }
+
+    // Direct-Play starten
+    useDirectPlay = true;
+    videoEl.src = directUrl;
+
+    // Seek-Position setzen sobald Metadaten geladen
+    if (seekSec > 0) {
+        videoEl.addEventListener("loadedmetadata", function() {
+            videoEl.currentTime = seekSec;
+        }, { once: true });
+    }
+
+    // Fehler-Handler: Bei Fehler auf HLS wechseln
+    var directErrorHandler = function(e) {
+        console.warn("[Player] Direct-Play Fehler, wechsle zu HLS:", e);
+        videoEl.removeEventListener("error", directErrorHandler);
+        useDirectPlay = false;
+        videoEl.removeAttribute("src");
+        videoEl.load();
+        startHLSStream(seekSec);
+    };
+    videoEl.addEventListener("error", directErrorHandler, { once: true });
+
+    // Abspielen sobald bereit
+    videoEl.addEventListener("canplay", function() {
+        videoEl.removeEventListener("error", directErrorHandler);
+    }, { once: true });
+
+    videoEl.play().catch(function(e) {
+        console.warn("[Player] Autoplay blockiert (Direct-Play):", e);
+        hideLoading();
+        showControls();
+        if (playBtn) playBtn.innerHTML = "▶";
+    });
+}
+
+
 // === HLS Streaming ===
 
 async function startHLSStream(seekSec) {

video-konverter/app/templates/tv/series_detail.html

@@ -385,4 +385,3 @@ document.addEventListener('focusin', function(e) {
 {% endif %}
 </script>
 {% endblock %}
-{% endblock %}